Geoffrey I or Josfred[1] (died February between 1061 and 1063) was the joint Count of Provence with his elder brothers William IV and Fulk from 1018 to his death.
He was the third son of William II of Provence and Gerberga of Burgundy and a scion of the younger line of the family.
In 1045, he consented to a donation of one of his vicecomital vassals to the monastery and in March 1048 to the transferral of property from Raimbaud, Archbishop of Arles, to the church.
In 1038, he gave over comital rights which had been possessed of his house since the reign of his great-grandfather William the Liberator to his vassals, losing control over many castles and fortresses.
Even when Rudolf III of Burgundy, his lord, sold any remaining rights over some royal villae, Geoffrey gave these away as allodial holdings.